[PATCH v4 1/3] arch: x86: apl: Only load VBT if CONFIG_HAVE_VBT is enabled

[Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>]

Only load VBT if it's present in the u-boot.rom.

Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>

Reviewed-by: Simon Glass <sjg@chromium.org>
Tested on coral:
Tested-by: Simon Glass <sjg@chromium.org>

---

Changes in v4:
Fix comment alignment

Changes in v3: None
Changes in v2: None

 arch/x86/cpu/apollolake/fsp_s.c | 46 ++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 21 deletions(-)

diff --git a/arch/x86/cpu/apollolake/fsp_s.c b/arch/x86/cpu/apollolake/fsp_s.c
index 7ef169b147..be283818e3 100644
--- a/arch/x86/cpu/apollolake/fsp_s.c
+++ b/arch/x86/cpu/apollolake/fsp_s.c
@@ -327,28 +327,32 @@ int fsps_update_config(struct udevice *dev, ulong rom_offset,
 {
 	struct fsp_s_config *cfg = &upd->config;
 	struct apl_config *apl;
-	struct binman_entry vbt;
-	void *buf;
-	int ret;
-
-	ret = binman_entry_find("intel-vbt", &vbt);
-	if (ret)
-		return log_msg_ret("Cannot find VBT", ret);
-	vbt.image_pos += rom_offset;
-	buf = malloc(vbt.size);
-	if (!buf)
-		return log_msg_ret("Alloc VBT", -ENOMEM);
 
-	/*
-	 * Load VBT before devicetree-specific config. This only supports
-	 * memory-mapped SPI at present.
-	 */
-	bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
-	memcpy(buf, (void *)vbt.image_pos, vbt.size);
-	bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI);
-	if (*(u32 *)buf != VBT_SIGNATURE)
-		return log_msg_ret("VBT signature", -EINVAL);
-	cfg->graphics_config_ptr = (ulong)buf;
+	if (IS_ENABLED(CONFIG_HAVE_VBT)) {
+		struct binman_entry vbt;
+		void *vbt_buf;
+		int ret;
+
+		ret = binman_entry_find("intel-vbt", &vbt);
+		if (ret)
+			return log_msg_ret("Cannot find VBT", ret);
+		vbt.image_pos += rom_offset;
+		vbt_buf = malloc(vbt.size);
+		if (!vbt_buf)
+			return log_msg_ret("Alloc VBT", -ENOMEM);
+
+		/*
+		 * Load VBT before devicetree-specific config. This only
+		 * supports memory-mapped SPI at present.
+		 */
+		bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
+		memcpy(vbt_buf, (void *)vbt.image_pos, vbt.size);
+		bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI);
+		if (*(u32 *)vbt_buf != VBT_SIGNATURE)
+			return log_msg_ret("VBT signature", -EINVAL);
+
+		cfg->graphics_config_ptr = (ulong)vbt_buf;
+	}
 
 	apl = malloc(sizeof(*apl));
 	if (!apl)
-- 
2.26.0